65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 846 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Septic Service Companies in Ashland, MA (2026)
122 septic service companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Ashland: Wind River Environmental of Walpole, MA, CR Score 65/100; 4.9★ from 846 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): JL Darling Septic Tank Pumping, posts 24/7 hours; ranked #2 of 122.
- 19
Most-reviewed: Wind River Environmental, 854 Google reviews at 4.9★, the most of 122 ranked; ranked #19.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
122 Ashland septic service companies are ranked here by CR Score, from ten published factors. 40 are open 24/7, 67 open Saturdays and 46 open Sundays, based on posted hours. The median Google rating is 4.9★ across 122 rated businesses.
Top 10 septic service companies in Ashland at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Wind River Environmental of Walpole, MA | 65 | 4.9★ (846) | Walpole, 14 mi away | 24/7 | Overall |
| 2 | JL Darling Septic Tank Pumping | 63 | 5.0★ (382) | Uxbridge, 17 mi away | 24/7 | Emergencies |
| 3 | Fairbank Septic Pumping LLC | 62 | 4.9★ (93) | Sudbury, 7 mi away | 24/7 | — |
| 4 | Grant's Septic Techs | 62 | 5.0★ (590) | Worcester, 10 mi away | Sat | — |
| 5 | Northboro / Curtis Septic Service | 61 | 4.9★ (73) | Northborough, 10 mi away | 24/7 | — |
| 6 | Smith Septic | 60 | 5.0★ (17) | Franklin, 3 mi away | 24/7 | — |
| 7 | Rodenhiser Excavating, Septic & Drains and Builders | 60 | 4.5★ (24) | Holliston, 3 mi away | 24/7 | — |
| 8 | Curtis Septic Service | 60 | 4.7★ (77) | Stow, 12 mi away | 24/7 | — |
| 9 | Home Town Pumping | 59 | 4.9★ (366) | Foxborough, 18 mi away | — | — |
| 10 | John's Sewer & Drain Cleaning | 58 | 4.9★ (796) | Woburn, 24 mi away | 24/7 | — |
The 122 best septic service companies in Ashland, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Uxbridge, 17 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 382 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sudbury, 7 mi away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Worcester, 10 mi away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 590 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Northborough, 10 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 73 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#6 Smith Septic
Based in Franklin, 3 mi away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holliston, 3 mi away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.5★ from 24 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stow, 12 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 77 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Foxborough, 18 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 366 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Woburn, 24 mi away
58/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 796 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Haverhill, 19 mi away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#12 ADC Septic
Based in Blackstone, 17 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 53 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boston, 15 mi away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 32 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Holliston, 7 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 98 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#15 Rhino Rooter
Based in Boston, 17 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Millbury, 17 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#17 Curtis Septic
Based in Leominster, 20 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marlborough, 13 mi away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 141 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hudson, 23 mi away
56/100CR ScoreRanked #19 because of its Google rating and review volume: 4.9★ from 854 Google reviews, the most in Ashland.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Acton, 13 mi away
56/100CR ScoreRanked #20 because of its Google rating and review volume: 4.8★ from 290 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#21 Waste Warriors
Based in South Boston, 23 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sudbury, 8 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 12 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in South Boston, 21 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Septic system service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Framingham Center, 4 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 12 Google reviews, listed on Google as “Septic system service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#25 Rooter-Man
Based in Framingham, 2 mi away
56/100CR ScoreRanked #25 because of its Google rating and review volume: 4.6★ from 71 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Septic service companies ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 122 ranked septic service companies here; the rest are on their profiles.
Also serving Ashland
20 more septic service companies within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| American Sewerage Septic Tanks | 3.0★ (2) | 23 mi |
| Beals & Sons Inc. - Construction Company | 5.0★ (1) | 10 mi |
| CDM Septic & Construction | 1.0★ (1) | 15 mi |
| Cutler Contracting, Inc. | 5.0★ (1) | 9 mi |
| David Favreau Construction & Septic Services | 5.0★ (2) | 17 mi |
| E A Comeau Septic | 5.0★ (1) | 13 mi |
| G. Nichols Construction Co., Inc | 5.0★ (2) | 14 mi |
| Groundscapes Inc. | 5.0★ (2) | 21 mi |
| JPAC Enterprises, LLC | 5.0★ (1) | 13 mi |
| L H Sewerage Inc | 5.0★ (2) | 23 mi |
| M G Stanick Septic Pumping Services | 4.5★ (2) | 19 mi |
| Mark Santora PE Inc | 5.0★ (2) | 12 mi |
| NorthEast Classic Builders | 1.0★ (1) | 10 mi |
| P & M Asphalt Services Inc | 1.0★ (1) | 15 mi |
| R Gustafson Sewer & Drain | 3.0★ (2) | 15 mi |
| R.E Barrows Septic Service & Construction | 5.0★ (1) | 17 mi |
| Rooter Man Sewer And Drain Cleaning | In Ashland | |
| Septic-Tech Inspector | 5.0★ (1) | 7 mi |
| Trinity Industries Corporation | 5.0★ (1) | 2 mi |
| Trufant Industries, Inc. | 5.0★ (2) | 16 mi |
How we ranked Ashland septic service companies
We scored 122 Ashland septic service companies on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 3, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Ashland data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Septic service companies in Ashland: frequently asked questions
Who is the best septic service company in Ashland?
By CR Score, the highest-ranked septic service company in Ashland, MA is Wind River Environmental of Walpole, MA with a CR Score of 65/100. It has 4.9★ from 846 Google reviews. It is open 24/7. JL Darling Septic Tank Pumping (#2) and Fairbank Septic Pumping LLC (#3) follow. We ranked 122 septic service companies on ten factors, last updated November 3, 2026.
How many septic service companies are there in Ashland?
ContractorsRanked ranks 122 septic service companies serving Ashland, MA. 1 of them is based in Ashland; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which septic service companies in Ashland are open 24/7?
40 ranked septic service companies in Ashland post 24/7 hours. The highest-ranked are Wind River Environmental of Walpole, MA (#1), JL Darling Septic Tank Pumping (#2) and Fairbank Septic Pumping LLC (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which septic service companies in Ashland work on weekends?
67 of 122 ranked septic service companies post Saturday hours and 46 post Sunday hours. The highest-ranked open Saturdays are Wind River Environmental of Walpole, MA (#1), JL Darling Septic Tank Pumping (#2) and Fairbank Septic Pumping LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Ashland septic service companies have?
The median Google rating among 122 rated septic service companies in Ashland is 4.9★, with a median of 17 reviews. Wind River Environmental has the most, 854 reviews, and ranks #19. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank septic service companies?
Each septic service company gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do septic service companies outside Ashland count in this ranking?
Yes, if they are within 25 mi of the Ashland city center, our service radius for septic service companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can septic service companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Ashland
- November 2026: CR Scores recalculated for 122 septic service companies serving Ashland.
More septic service companies and Ashland pages
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